Fix: comment not highlighted when opening wiki page from todo mention link

What does this MR do and why?

Comments are currently not highlighted when a user visits a wiki page through a To-Do list entry created by a user mention. A behavior like that exists in other mentionables like issues and merge requests. This MR is raised to fix the above-mentioned behaviour.

References

Related issue - #517590

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Go to Projects

   -> Select Any Project

   -> In the left-sidebar hover on the Plan CTA

   -> you will see few options

   -> select Wiki among those

   OR just go this URL - http://127.0.0.1:3000/flightjs/Flight/-/wikis/pages

2. Create one if there are no pages there.

MR acceptance checklist

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Related to #517590